This is probably going to be a hot take but "Mujigae" is genuinely such an incredible level. Sure, it's a bit messy and it might not be the most polished level as of 2025, but I've always been a huge fan of it since the time I first saw it sometime back in late 2018. It's without a doubt one of the most unique takes on a Nine Circles level, straying far from the hellish undertones of the original and instead opting to shower the player in this bright and overwhelming torrent of rainbows and neons. "Mujigae" is a level that can't be described as anything but euphoric in terms of atmosphere. It's a beautifully passionate level that perfectly manages to embody these pure feelings of joy and ecstasy as it implores the player to, much like the level's visuals itself, 'embrace the spectrum' (obviously alluding to the visible spectrum and not a certain other spectrum as several jokers in the comments have pointed out). The overwhelmingly bright and vibrant visuals only serve to reflect the overwhelming happiness that emanates and radiates from "Mujigae". I seriously doubt that I can name a level that manages to get any happier and more blissful than this does. The sheer rapture that "Mujigae" is able to evoke already manages to elevate it above being a simplistic 'Rainbow Nine Circles' or 'Gay Nine Circles' level that many have already derided it as. In fact, I think its emotional core alone allows it to stand out more than a majority of levels out there (not just basic 'Nine Circles' levels).

In all honesty, I think "Mujigae" is genuinely a phenomenal level. It perfectly fits its song and just encapsulates its feelings of warmth and elation. I love that it encourages players to open their eyes to the beauty a simple rainbow can behold, nudging them to 'embrace the spectrum' and take in the audiovisual banquet that is occurring before them (obviously, it's much harder to do that when you're actually beating the level, but upon watching a playthrough or playing it with no-clip on, it's much easier to focus on its splendor and spectacle).

Although, my most controversial take-away (only on Hyperbolus) is probably just that "Mujigae" is a level that does everything that people say that "Melody" does.